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Smithsonian Institution Washington
Smithsonian Institution
Smithsonian Information PO Box 37012 SI building room 153, Washington, DC, 20013 | 202 633-1000
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Smithsonian Institute - America's museum

Consisting of 19 world-class museums and a zoo, the Smithsonian Institute is one of the country's most beloved and most visited Washington, D.C. attractions. Established in 1855, the Smithsonian offers visitors a close-up look at the sciences, industry, the arts, and more. From space and aircraft exhibits to African American culture, postal history and sculptural masterpieces, The Smithsonian Institution offers something interesting and educational for visitors of all ages. 


Prices -

 Admission to all Smithsonian museums and the zoo is free.

Hours -

 The Smithsonian Castle is open daily from 8:30am-5:30pm. Most other Smithsonian museums are open daily from 10am-5:30pm.


  • Smithsonian Folklife Festival
  • Living Earth Festival
  • Brew at the Zoo


  • Carousel
  • Planetarium
  • Special exhibitions
  • IMAX theaters
  • Guided tours
  • Family events


  • who established the smithsonian institute?

    Made possible by a bequest to the American Government from British scientist James Smithson, the Smithsonian Institution was established, in the words of Smithson, for "the increase and diffusion of knowledge among men." Opened in 1855, the Institution has grown to include 19 different museums and has made a significant impact on the arts, humanities and sciences in the United States.
  • How do I plan a group tour?

    Group tours can be arranged by making an appointment at the preferred museum. Groups of 10 or more can also take advantage of special discounts to museum restaurants and special attractions. Visit the Smithsonian website's Group Tours page for more information. 

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Distance from attraction: 1.63 miles
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